Article
Salmonella typhimurium cob mutants are not hyper-virulent.
FEMS microbiology letters - 1 Jun 1996
Björkman J, Rhen M, Anderson D I
Abstract excerpt
It was previously reported that Salmonella typhimurium LT2 cob mutants defective in the biosynthesis of vitamin B12 (cobalamin) are more virulent than the wild type in mice. Here we show that the strains used previously are non-isogenic and that the proposed increase in virulence of the cob mutan...
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